<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */

	private $_id;

	public function authenticate()
	{
		$user=User::model()->find("username=:username",array(":username"=>$this->username));
		if($user==null)
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		elseif(!$user->ValidationPassWord($this->password))
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		else{
			$this->_id = $user->userid;
			$this->username=$user->username;
			$user->ip= Yii::app()->request->userHostAddress;
			$user->lastlogintime = date('Y-m-d H:i:s');
			$user->save();
			Yii::app()->session->add("user",$user);
			$this->errorCode=self::ERROR_NONE;
		}
		return !$this->errorCode;
	}
}